As we all know, cell phones are harmful in generall, but they are especially dangerous if you put them under your pillow while you are sleeping. The reason why it is dangerous is because you will be overexposed to potentially harmful radiation.
Following are several news stories on the issue of sleeping with a cell phone under your pillow:
CBS – CBS directly addresses sleeping with a cell phone under your pillow or nex to your head with the article entitled “Cell phones & cancer: 8 dumb ways to boost possible risk”. The following is a quote from the article:
“Some people are so attached to their cell phones that they sleep with them on their nightstand or even under their pillow. Bad idea. Cell phones pump out electromagnetic radiation whenever they’re on – which means sleeping with one nearby boosts your exposure all night long. What to do? Put the phone on “airplane mode” (which shuts down the transceiver) or turn it off. If you need to be available for calls, place the phone several feet away from your bed.”